title: Generation of 120 GW mid-infrared pulses from a widely tunable noncollinear optical parametric amplifier.
abstract: We demonstrate a noncollinear optical parametric chirped-pulse amplification scheme for generating high-peak-power tunable mid-infrared (IR) pulses. The high-gain LiNbO(3)-based noncollinear parametric amplifier, seeded by a tunable femtosecond optical parametric amplifier, provides a wide wavelength tuning range from 3.3 to 3.95 μm and a large saturated gain of over 4000 in a single-stage amplifier. The compressed mid-IR pulse has a pulse energy of 13.3 mJ and pulse duration of 111 fs, with a peak power as high as 120 GW. To the best of our knowledge, this is the highest peak power ever reported for 3-5 μm tunable mid-IR lasers.
authors.affiliation: Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China.
authors.forename: Kun
authors.initials: K
authors.lastname: Zhao
authors.forename: Haizhe
authors.initials: H
authors.lastname: Zhong
authors.forename: Peng
authors.initials: P
authors.lastname: Yuan
authors.forename: Guoqiang
authors.initials: G
authors.lastname: Xie
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Jingui
authors.initials: J
authors.lastname: Ma
authors.forename: Liejia
authors.initials: L
authors.lastname: Qian
mesh_terms: D007259:Infrared Rays; D055096:Optical Devices; D013997:Time Factors